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    Geodetic VLBI correlation in software

    Access Status
    Open access via publisher
    Authors
    Tingay, Steven
    Alef, W.
    Graham, D.
    Deller, A.
    Date
    2009
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Tingay, Steven and Alef, W and Graham, D and Deller, A. 2009. Geodetic VLBI correlation in software. Journal of Geodesy. 83 (11): pp. 1061-1069.
    Source Title
    Journal of Geodesy
    DOI
    10.1007/s00190-009-0324-3
    ISSN
    09497714
    Faculty
    Faculty of Science and Engineering
    Curtin Institute of Radio Astronomy
    Remarks

    The original publication is available at : http://www.springerlink.com

    URI
    http://hdl.handle.net/20.500.11937/35427
    Collection
    • Curtin Research Publications
    Abstract

    Correlation algorithms for geodetic very long baseline interferometry (VLBI) can now be effectively implemented on parallel computers of modest size.We have undertaken a detailed comparison of the output from a trusted geodetic correlator, one that has supported global geodetic VLBI observations for many years, with the output of a software correlator implemented on a small parallel computing cluster. We show that the correlator outputs agree closely, within expected error bounds, after accounting for the differences in the adopted geometric delay models, and therefore that use of the software correlator is feasible for geodetic VLBI processing, as a first step toward routine geodetic data processing. Recent developments in software correlation for geodesy are discussed, including the possibility of real-time processing options.

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